>The size of volcanic eruptions can be expressed by the volume or mass of magma released (table 1), with super-eruptions yielding in excess of 450 km3, or more than 1×10^15 kg, of magma (Sparks et al. 2005).
Wikipedia says the Empire State Building has a volume of 1e6 m3 or 0.001 km3. So the eruption would be equivalent to at least 450,000 Empire State Buildings worth of magma. Mt Everest is some 90km3, so only 5 Mt Everest equivalents.
These amounts are too big for me to comprehend, but yeah. Going to need a bigger boat.
[0] https://royalsocietypublishing.org/doi/full/10.1098/rsta.200...